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We just loaded up feather rock or pumas into three trays. With in hours, the ponds floating bits of algae have been reduced to almost nothing...
It seems that the pitted feather rock is trapping the floating algae bits. The algae bits are most likely from the fish tearing it off the sides of the pond....
Time will tell now if the bits trapped on the feather rock will either pile up or get reduced by beneficial bacteria...
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